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Q: What is the radius of a circle with a circumference of 13 feet?

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The circumference is about 81.7 feet.

The circumference is about 81.7 feet.

radius in feet = 13/(2*pi)

The circumference of a circle with a radius of 13 is: 81.68 units.

r = ~2.07 feet

radius = 2.069

A circle with a radius of 8 inches has a circumference of 50.27 inches.

2*pi*radius = circumference 2*pi*radius = 13 Making the radius the subject of the formula is: radius = 13/(2*pi) = 2.06901426 feet Check: 2*pi*2.06901426 = 13 feet

The circumference of the circle is given as 2* Pi* r where r is the radius. So, when circumference is 13, radis should be 13 divided by 2 pi or 7.5/pi or 7.5/3.142857 = 2.387324 ----

The circumference of a circle with a 13-inch radius is: 81.68 inches (r x 2 x pi = circumference).

It is: circumference = 2*pi*13 or pi*26

2 x 13 x pi = 81.68 Circumference of a circle = 2*pi*radius or pi*diameter Circumference = 2*pi*13 = 81.68140899

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